Systems and Methods for Authenticating End Users of a Web Service

2. The computing system of claim 1, wherein the first server comprises a messaging server associated with a messaging service that is independent of the first data record.

3. The computing system of claim 1, wherein the first server comprises a resource server associated with the first data record and wherein the first transfer comprises a transfer of resources via a real-time transfer rail.

6. The computing system of claim 1, wherein determining the completion status of the first transfer comprises detecting transfer failure of the first transfer and wherein the response to the authentication request comprises a notification of the transfer failure.

8. The computing system of claim 6, wherein detecting the transfer failure of the first transfer comprises determining that a time-out condition associated with the first transfer has occurred.

9. The computing system of claim 1, wherein the message comprises a transfer initiation message for transferring the first quantity of resources from the second data record to the first data record and wherein determining the completion status of the first transfer comprises determining that the first quantity of resources is received at the first data record.

10. The computing system of claim 9, wherein the transfer initiation message identifies the first data record as an exclusive recipient data record.

12. The method of claim 11, wherein the first server comprises a messaging server associated with a messaging service that is independent of the first data record.

13. The method of claim 11, wherein the first server comprises a resource server associated with the first data record and wherein the first transfer comprises a transfer of resources via a real-time transfer rail.

16. The method of claim 11, wherein determining the completion status of the first transfer comprises detecting transfer failure of the first transfer and wherein the response to the authentication request comprises a notification of the transfer failure.

18. The method of claim 16, wherein detecting the transfer failure of the first transfer comprises determining that a time-out condition associated with the first transfer has occurred.

19. The method of claim 11, wherein the message comprises a transfer initiation message for transferring the first quantity of resources from the second data record to the first data record and wherein determining the completion status of the first transfer comprises determining that the first quantity of resources is received at the first data record.

20. The method of claim 19, wherein the transfer initiation message identifies the first data record as an exclusive recipient data record.